So I have modifed the socials window to add a button to open a related custom UI piece. The button except for looks is okay. The issue is that only pressing the top portion of the button actually opens anything.... The button is <Button location="230,30" Name="Performances" .. so what am I doing wrong? Here is the code:

Your custom button is underneath the TabPane element. Two possible ways to fix this: 1) add AbsorbsInput="false" to the TabPane element, or 2) move the custom button above the TabPane in the source listing.